Proper operation of your air conditioning unit requires a clean air filter. If the air filter gets clogged, it can cause the air conditioning unit to freeze up and stop working or at least degrade its functionality.

We’re not at the end of the cooling season yet. People often forget to change the filter this time of year. But it’s easy and it’s cheap, and it’s a good idea to change it every 3 months. By the way, there are good filters and there are cheap filters. We recommend a HEPA (High-Efficiency Particulate Absorbing filter). HEPA filters are substantially better than the cheap ones. If you want to go to the next level, talk to your air conditioning service company about electrostatic filtration which utilizes electricity and HEPA filters to remove about 99% of particulates including many strains of mold, bacteria, and viruses. By the way, all these suggestions apply to hot air heating systems. In the winter, the air in your home is often very dry which leads to more particulates in the air which makes it even more important to have a good filtration system.

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